Abstract: Provided are, among other things, aquatic apparatuses. In one, an aquarium is at least partially filled with water, and a mirror is disposed within the water, the mirror having a reflective surface area that is between 1-40 square inches. In another, an aquarium is at least partially filled with water, and a mirror is attached to, and thereby suspended beneath, a buoyant object in the water. In yet another, a mirror is attached a buoyant object, the mirror having a reflective surface area that is between 1-40 square inches.

Abstract: A swiftlet breeding facility, for use in creating and harvesting edible bird's nests. The facility includes sub-systems for injecting live insect and worm prey, and water, into an aerial enclosure to provide a feeding system imitative of a natural swiftlet feeding environment.

Abstract: The pet carrier includes a pair of lateral straps attached or attachable to lateral ends of the pet transport device to form loops adapted for extending the vehicle seat belt therethrough to secure the frame of the device to the vehicle seat. The strapping system also has a third strap having one end forming a loop on the exterior of the pet carrier or transport device, and an opposite end extending into the interior of the carrier, pet seat, or other transport device and terminating in a snap hook or the like for attachment to a pet collar. The vehicle seat belt also extends through the third strap's loop so that both the carrier and a pet tether are restrained by the vehicle's seatbelt.

Abstract: A dipping device for a milking system, especially for an automatic milking system designed as a milking robot with teat cups to be placed onto the teats of an animal to be milked, which is designed for contacting the teats of the animal with at least one fluid or several fluids, and the device has several dipping valve arrangements so that the dipping agent introduction to each teat of the animal can be controlled separately.

Abstract: A light accessory is provided for a remotely controlled animal training system, allowing visual tracking of an animal in low ambient light conditions. The light accessory may be a stand-alone accessory or be in conjunction with a wireless receiver. The light accessory may be controlled by an accessory channel that exists in the remotely controlled animal training system, or may be controlled by the presence of a generic proximate radio frequency transmission.

Abstract: An electronic fence system capable of guiding animals under training to return to a predetermined restricted area is disclosed. The fence system may utilize either a plurality of loops to determine direction of travel for a receiver unit or, alternatively, a GPS system. For embodiments utilizing the GPS system, electronic fences are defined in relation to GPS location information. A lock-down mode is used to contain an animal to a very constricted area when a control command is received to initialize the lock down mode or upon a specified condition. Specified conditions include the animal approaching or entering a specified area or, alternatively, a threshold level of charge being reached for a battery that provides power for the receiver unit.

Abstract: The present invention relates to a method and apparatus for heating liquid for use in a radiant heating system. More specifically it relates to transferring heat generated from friction caused by pressing brake pads against rotating wheels to a thermally conductive liquid being pumped through said rotating wheels and circulating the heated liquid through a radiator type space heating system.

Abstract: The present invention relates to a boiler having horizontally arranged flat rectangular water tubes comprising: a water chamber; an inner water chamber to be connected with horizontal water tubes, said horizontally arranged water tubes forming multi-step water tube groups; induction plates provided in the inner water chamber blocking the water path of the horizontal water tubes alternatingly in such a manner as to bend the water path in a zigzag manner; an exhaust gas discharge conduit in straight lattice lines formed by narrow gaps between the horizontal water tubes; and an exhaust gas discharge chamber formed in an upper water chamber. The flat horizontally arranged rectangular water tubes are narrow in their width, making it possible to arrange them densely in the limited space of the combustion chamber, and with their increased heat receiving areas, the water tubes can heat the water in the boiler fast.

Abstract: A water heater especially for bathroom includes a hair filter (1), a water self pumping pump (2), a heat exchanger (3), a water valve (5), a controller (6), an operator (7), three water flow resistance amplifiers (8) and a waste water tank (9). The heat exchanger can recover the heat from the waste water during bathing and preheat cold water. The waste water tank can reuse the waste bath water for flushing toilets. Said parts are assembled by pipes and electric circuits and arranged on the proper position in the bathroom.

Abstract: The arrangement is for positioning equipment in association with an opening in a boiler wall and has a rotation mechanism that rotates the equipment around a virtual rotation axis that lies within the outer wall of the boiler. During the use of a liquor spreader for the introduction of combustible material, the opening of the liquor spreader is arranged in the virtual center of rotation so that the point at which the combustible material is introduced is retained independently of the angle of rotation. The liquor spreader is united either with a glide device or the guide in the rotation mechanism.

Abstract: A vessel for cooling syngas comprising a syngas collection chamber and a quench chamber, wherein the syngas collection chamber has a syngas outlet which is fluidly connected with the quench chamber via a tubular diptube, wherein the diameter of the diptube at the end nearest to the syngas collection chamber is greater than the diameter of the diptube at the end terminating at the quench chamber.

Abstract: The present invention relates to a cooling system for an internal combustion engine. The cooling system can be used in a hybrid electric vehicle. The system includes electric pumps in fluid communication with the engine and a control unit that governs the pumps. The pumps can be configured to supply fluid to either a cylinder block or cylinder head and backflow fluid through either the cylinder block or cylinder heads. Various arrangements of electrical and mechanical pumps are disclosed to control fluid flow and pressure.

Abstract: A system for variable engine compartment ventilation in a slim and compact unit with components used in non-related industries. The system can have at least one bank of movable louvers rotatably mounted within a louver frame for guiding a flow of air into a vehicle engine compartment; a motor to rotate the louvers with a motor gear formed on an output shaft rotatably connected in parallel to at least one helix cable by a helix cable drive gear and a louver pinion gear integral with each louver engaging the helix cable along its length; and a control unit for operating the assembly of movable louvers in response to an output signal from a vehicle communication bus. The output signal of the vehicle communication bus can be in response to input from an engine coolant temperature sensor or a vehicle speed sensor.

Abstract: An intercooler assembly for a vehicle. The intercooler assembly may include an inflow portion on which an inflow hose is mounted, the inflow portion including a buffering space to temporarily accumulate an in-flowing air, a first cooling portion fluidly connected to the inflow portion, an outflow portion on which an outflow hose is mounted, a second cooling portion fluidly connected to the outflow portion, and a turnaround portion fluidly connecting the first cooling portion and the second cooling portion, wherein the turnaround portion changes a flow direction of the in-flowing air and guides the in-flowing air toward the outflow portion so as to discharge the air.

Abstract: A filter assembly (100) comprises a housing (200) and a filter cartridge (300) that incorporates crankcase pressure-regulating components. The cartridge (300) includes an end cap (330), a plunger (340), and a spring (350). When the filter cartridge (300) is installed in the housing (200), the plunger (340) interacts with a podium (224), in response to crankcase pressure, to allow or block fluid communication with the inlet chamber (111).

Abstract: It is a technical common knowledge that a chaplet used in casting of a hollow casting is fusion-bonded with the melt and is incorporated into the casting. However, the adhesion between the chaplet and the casting body is not necessarily satisfactory, thereby incurring the strength reduction of a thin-wall hollow casting. A core for a thin-wall hollow casting according to the present invention is provided with a chaplet mounted thereon. The chaplet has arcuate portion 2 with a gap 5 and a plurality of projections 4 from an outer peripheral of the arcuate portion and is in contact with an inner wall 7 of a mold. The entire arcuate portion of the chaplet is included in a groove 6 formed around an outer peripheral portion of the core body. Only the projections 4 of the chaplet protrude from the core body, when the chaplet is inserted in the groove.

Abstract: A continuously variable valve actuation (CVVA) system may include a driving cam firmly fixed to a crank shaft and rotated by a driving force of the crank shaft, a driven cam configured to rotatably contact the driving cam, wherein the driven cam is selectively pressed by the driving cam to rotate around one end thereof serving as a rotational axle and has a cam face at the other end thereof so as to press and open a valve when pressed, and a swing arm, one end of which is pivotally coupled to a stationary member and the other end of which is coupled to the one end of the driven cam to be rotated around the rotational axle of the swing arm.

Abstract: A continuously variable valve lift apparatus may include a control shaft, a camshaft in which a cam is formed thereto, an eccentric member connected to the control shaft, a follower slidably contacting the cam, a follower arm that is extended from a follower ring mounted around the eccentric member, a variable ring slidably mounted on the eccentric member and a variable arm extended from the variable ring, an output ring slidably mounted on the control shaft and an output arm extended from the output ring, wherein an output cam is integrally formed to the output arm and an end portion of the output cam is pivotally coupled to one end portion of the output arm, a first link pivotally connecting the follower arm and the variable arm, and a second link pivotally connecting the variable arm and the output arm.

Abstract: A variable valve lift apparatus may include an inner body of which an end is pivotally connected to an anchor, an outer body of which an end is pivotally connected to the anchor, a roller finger follower of which an end is pivotally connected to a hydraulic lash adjuster, wherein a portion of the roller finger follower is pivotally connected to the outer body, a valve disposed to the other end of the roller finger follower, and a connecting unit selectively connecting the inner body and the outer body.

Abstract: An apparatus for adjusting deviation of an engine and a continuously variable valve lift device including the same are provided. The apparatus for adjusting deviation of an engine includes an adjustment member connecting a rocker arm to plural output cams, respectively, to adjust lengths between the rocker arm and the output cams, respectively, so that the lengths become equal to or different from each other. The continuously variable valve lift device includes an eccentric cam shaft with eccentric cams installed on its outer periphery, a rocker arm rotatably installed on the eccentric cams to interlock with plural output cams, and apparatus for adjusting deviation provided on the rocker arm to adjust lengths between the rocker arm and the output cams so that the lengths become equal to or different from each other.

Abstract: A controller of a variable valve device is configured to, before starting an internal combustion engine, set an operation angle varying mechanism to control an intake valve of the engine to have such an operation angle as to retard a valve close timing of the intake valve relative to a piston bottom dead center; define a given period from a instruction time when an instruction signal is fed to the controller for starting the engine to a time when a combustion of air/fuel mixture is actually commenced in the engine; and when, in the given period, a temperature representing the temperature of the engine is lower than a predetermined temperature, reduce the operation angle of the intake valve so as to bring the valve close timing of the intake valve near to the piston bottom dead center.

Abstract: A variable valve timing control apparatus for an engine includes a variable valve timing unit, a lock pin, a hydraulic control unit, and a lock control unit. The lock control unit causes the lock pin to lock the camshaft phase at an intermediate lock phase when a lock request is issued. When the lock request is issued, the camshaft phase is shifted in a reference direction to go beyond the intermediate lock phase while the lock pin is urged in a lock direction. When the camshaft phase stops around the intermediate lock phase, the lock control unit changes a control amount of the hydraulic control unit by a certain amount to shift the camshaft phase. The lock control unit determines that the camshaft phase has been locked at the intermediate lock phase when the camshaft phase is not shifted even after the lock control unit changes the control amount.

Abstract: A variable valve timing control apparatus for an engine includes a variable valve timing unit, a lock pin, a hydraulic control unit, and an oil filling control unit. An operation mode of the hydraulic control unit is changed between a lock mode, in which the lock pin locks the camshaft phase at the intermediate lock phase, and a phase feed-back control mode, in which the camshaft phase is controlled to a target phase. The oil filling control unit supplies oil to an advance chamber and a retard chamber of the variable valve timing unit before the operation mode is changed from the lock mode to the phase feed-back control mode after an engine start. The oil filling control unit causes the lock pin to keep locking the camshaft phase until the oil filling control is completed after the engine start.

Abstract: A valve drive for activation of gas exchange valves of internal combustion engines, with which valve stroke switching is accomplished with little effort, a low construction height, and at low switching forces. Incorrect switching and damage to the camshaft during valve stroke switching are avoided, even at high engine speeds of rotation. An adjustment shaft that is rotatable by the camshaft and parallel to the camshaft has two adjustment devices rotatably disposed on it, along with two tappets between the adjustment devices. The tappets are connected with a shift gate for valve switching between two different cam profiles of a cam package that is axially displaceable on the camshaft. The tappets each have a contour that contacts the adjustment devices via a guide pin. A gear wheel engages with a gear segment on the camshaft, via a drive on the adjustment shaft, to rotate the adjustment shaft.

Abstract: An end pivot valve train is provided in a cylinder head to open and close a cylinder valve. The end pivot valve train includes a cam follower forcing the cylinder valve, and a cam holder assembled onto an upper portion of the cylinder head and includes a receiving groove to receive the cam follower therein, wherein the cam holder has a protrusion configured and dimensioned to interfere with an upper surface of the cam follower when the cam follower rotates such that a longitudinal edge thereof moves up.

Abstract: A valve spring device is provided with a first coil spring and a second coil spring combined in series with each other. The inside diameter (coil inside diameter) of the second coil spring is greater than the outside diameter (coil outside diameter) of the first coil spring. A part of the first coil spring including an end portion along an axis is inserted into the second coil spring, thereby forming a combined spring. The end portion of the first coil spring and an end portion of the second coil spring are connected to each other by a connecting member. The first and second coil springs are compressed along the axis as they are located in series between a cylinder head and a retainer. A shaft of a valve is passed within the coil springs.

Abstract: An apparatus for conditioning fuel includes an enclosure that maintains a void and an opposed volume of an electrolytic solution, and an electrically charged electrode structure positioned in the volume of the electrolytic solution generating electrolysis in the electrolytic solution to produce hydrogen gas that passes into the void from the electrolytic solution. A fuel supply line of an internal combustion engine is coupled in gaseous communication with the void to receive the hydrogen gas from the void and apply the hydrogen gas to fuel flowing through the fuel supply line to condition the fuel with the hydrogen gas.

Abstract: In a method of increasing the combustion efficiency of a gasoline/diesel internal combustion engine for vehicles, vessels, aircraft, generators, etc., an adequate amount of additive is added to and mixed with gasoline/diesel fuel. The additive includes a plurality of highly electrically and thermally conductive carbon nanocapsules of a hollow polyhedral carbon cluster material having a size from a few to several decades of nanometers. The carbon nanocapsules attach to all gasoline molecular groups or diesel molecules. When the gasoline or diesel fuel is released into a combustion chamber of the internal combustion engine and ignited to burn, the carbon nanocapsules are electrically or thermally induced and release energy for all the gasoline molecular groups or diesel molecules being attached by the carbon nanocapsules to burn synchronously and uniformly. Thus, the problems of downward inclined temperature gradient, incomplete combustion, and carbon deposition in the internal combustion engine can be avoided.

Abstract: A heating device (100) for combustion of liquid fuels comprises at least one catalytic element (140) for catalytically burning a mixture of fuel and air, a fuel supply means (133) being disposed on an upstream side of said first catalytic element (140) and an air supply means (132) being disposed on an upstream side of said at least one catalytic element (140). A fuel-evaporating device (130) has a substantially axisymmetric shape and an upstream end and a downstream end. The fuel-evaporating device is heated, during operation, by the at least one catalytic element (140), and is supplied with fuel and air from the fuel supply means (133) and the air supply means (132). The heating device also comprises an outer housing (110), for containing said catalytic element (140) and said fuel-evaporating device (130). The fuel-evaporating device (130) is provided with at least one inner inlet pipe (132; 132b) in the generally upstream end thereof.

Abstract: An internal combustion engine, and an optional integrated electrical generator, both enclosed in a single waterproof and dustproof case. The engine has at least one cylinder and piston which extends radially from an axis of rotation about which a cam track assembly rotates. The engine block, including at least one cylinder, remains stationary.

Abstract: A control system for an internal combustion engine having a valve operating characteristic varying device which continuously changes a lift amount of at least one intake valve. Operation of a start switch, which instructs the start of the engine is detected. The engine is started after a predetermined delay time period has elapsed from the moment the operation of the start switch is detected. The valve operating characteristic varying device is operated during the predetermined delay time period, and a failure determination of the valve operating characteristic varying device is performed.

Abstract: An intake system of an engine for a vehicle, may include a surge tank including a first flange, and an intake manifold including a second flange connected with the first flange of the surge tank, wherein the intake manifold may include a main body including a fuel rail and intake ports corresponding to cylinders, and a guide member provided on the main body to guide the surge tank coupled with the main body in a direction where the surge tank becomes separated and more distant from the fuel rail of the intake manifold when a vehicle collision occurs.

Abstract: An internal combustion engine having a plurality of cylinders and an air intake system, with the air intake system formed from at least one distributor pipe, a plurality of intake pipes and at least one plenum, and with the plenum positioned between the distributor pipe and the intake pipes. Here, the combustion air is fed to the air intake system via an air guiding duct which opens out into the distributor pipe, with the charge pressure of the combustion air reduced between the outlet out of the compressor and the inlet into the combustion chamber. A distributor pipe length is dimensioned as a function of an equivalent distributor pipe diameter such that it is possible for a reduction in the charge pressure to be obtained within the air intake system by expansion taking place partially in the plenum in the respective intake pipe and/or within the distributor pipe.

Abstract: An inlet mechanism for a vehicle air induction system is disclosed, the inlet mechanism including a main body disposed in a housing, wherein the main body is selectively positionable within the housing to control a volume of airflow therethrough over a range of engine speeds.

Abstract: The present invention features, generally, an oil discharging structure of a balance shaft module which can smoothly discharge oil pumped by a balance shaft outside of the balance shaft module by forming an oil guide surface in a ladder frame that is installed in an upper part of the balance shaft module. The oil discharging structure of the present invention preferably includes a balance shaft housing that is rotatably supported with a balance shaft inserted therein; oil discharge holes formed in the balance shaft housing so that oil in the balance shaft housing is discharged to the outside by the balance shaft; and an oil guiding means that is provided in a ladder frame mounted on an upper part of the balance shaft housing in order to induce the oil discharged through the oil discharge holes to the outside of the balance shaft housing.

Abstract: A baffle plate includes a discharge portion that discharges lubricating oil that has dropped onto the baffle plate, to an oil pan. The discharge portion extends to be inclined in a direction in which cylinders are arranged, with respect to a rotation central axis of a crankshaft. The discharge portion includes a guide groove in which an upstream portion in a rotational direction of the crankshaft is located under a counter weight, and a downstream portion in the rotational direction of the crankshaft is located under a crank bearing. The discharge portion includes a discharge hole that is formed in the downstream portion of the guide groove in the rotational direction, and that provides communication between the oil pan and an engine block.

Abstract: A wet cylinder liner, which exhibits a cast basic body comprised of a cast iron alloy, has at least one outer surface area of which exhibits a thermal injection layer consisting of a basic iron alloy as a coating, with a layer thickness of 1 ?m to 1000 ?m.

Abstract: A portable handheld work apparatus has at least one work tool which is driven by an internal combustion engine (2). The engine (2) has a crankcase (20) which is formed, at least in part, by a crankcase sump (28). The work apparatus has a housing component (4) of plastic. The crankcase sump (28) is made of metal and is injection molded into the housing component (4) of the work apparatus. The engine (2) has an ignition unit which includes an ignition module (31). A simple configuration of the work apparatus results when the ignition module (31) is fixed directly and electrically conductively to the metal crankcase sump (28). For making the work apparatus, at least one attachment element for attaching a work tool carrier is fixed on the crankcase sump (28) before the crankcase sump (28) is injection molded therearound by the material of the housing component (4).

Abstract: A lubrication apparatus of a fuel pump, which lubricates a tappet and a fuel pump drive cam of the fuel pump, may include a cylinder head having an oil gallery formed therein and a camshaft disposed therethrough, wherein the fuel pump is coupled to the cylinder head, and a penetrating passage penetrating the cylinder head and connected to the oil gallery to supply oil from the oil gallery to the inside of a fuel pump adaptor connected to the fuel pump.

Abstract: A lubrication apparatus of a fuel pump driven by a fuel pump drive cam, which lubricates a tappet moving reciprocally at an interior circumference of a fuel pump adaptor and the fuel pump operating the tappet, may include a fuel pump adaptor lubrication passage formed in the fuel pump adaptor and communicating with an oil gallery formed inside a cylinder head so as to supply oil in the fuel pump adaptor.

Abstract: The present invention is a variable displacement pump system for delivering precisely controlled oil flow and pressure, including a variable displacement pump having an inlet passage, an outlet passage, a first chamber and a second chamber for controlling the displacement of the variable displacement pump. The present invention also includes a fluid control device for receiving fluid from the outlet passage, and selectively delivering fluid to the second chamber. Fluid is delivered from the inlet passage to the outlet passage from the variable displacement pump, and fluid is also delivered from the outlet passage to the first chamber and the fluid control device. When fluid pressure is greater in the first chamber relative to the second chamber, the displacement of the variable displacement pump will decrease, and when fluid pressure is greater in the second chamber relative to the first chamber, the displacement of the variable displacement pump will increase.

Abstract: Combustion engine (10) comprising a stator (11) provided with a compartment (16), inside which a rotor (20) is mounted rotatable, which comprises two parts (22, 23) each comprising a peripheral surface (47) and articulated one with respect to the other and both mounted rotatable, around the same axis of rotation (21) substantially coaxial with the compartment (16). The combustion engine (10) comprises kinematisms (60) to coordinate cyclically the rotations of the two parts (22, 23) around the axis of rotation (21), so that each of the parts (22, 23) accelerates or decelerates synchronously with respect to the other, while still both rotating in the same direction and at the same average angular velocity.

Abstract: A plasma-vortex engine (20) provided. The engine (20) consists of a plasmatic fluid (22) circulating in a closed loop (44) encompassing a fluid heater (26), an expansion chamber (30), and a condenser (42). The expansion chamber (30) is fabricated of magnetic material, and encompasses a rotor (72), fabricated of non-magnetic material, to which T-form vanes (114), also fabricated of non-magnetic material, are coupled. A shaft (36) is coupled to the rotor (72). During operation, the plasmatic fluid (22) is heated to produce a plasma (86) within the expansion chamber (30). The plasma (86) is expanded and a vortex (100) generated therein to exert a plasmatic force (93) against the vanes (114). The rotor (72) and shaft (36) rotate in response to the plasmatic force (93). A plurality of magnets (115,119) are embedded in the vanes (114) and rotor (72) to provide attractive and repulsive forces (97,99,101) and better seal the vane (114) to the expansion chamber (30).

Abstract: Change in number of pilot injection is avoided in a transient response of an engine, so that driving feeling and travelling feeling are improved. When pilot injection is performed, whether fuel injection amount Q immediately before the pilot injection is more than a maximum value Qmax is determined (S100), and in the case that the fuel injection amount is determined to be more than the maximum value Qmax, number of pilot injection is fixed to a predetermined value (S102), and on the other hand, in the case that the fuel injection amount Q is determined to be not more than the maximum value Qmax, whether the fuel injection amount Q is lower than a minimum value Qmin is determined (S104), and when the fuel injection amount Q is determined to be lower than the minimum value Qmin, number-fixed control of pilot injection is released, and map control where pilot injection number is determined based on a map is started (S106).

Abstract: A direct injection flathead engine comprising an internal combustion cylinder block with at least one fuel injector positioned substantially transverse to the cylinder axis. The engine also comprises at least one exhaust valve positioned substantially near the at least one fuel injector, where the exhaust valve is on the same side of the piston as the fuel injector. In one aspect, a fuel injector is positioned substantially transverse to the cylinder axis, whereby a substantial portion of the fuel may be sprayed on top of the hot exhaust valve and deflected towards the spark plug, thus forming a stratified charge around the spark plug.

Abstract: A device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets is described, characterized by: an additional rocker arm (9) for each cylinder, pivoting about an axis (4) common to the rocker arms of the exhaust valves, and suitable to engage with a corresponding additional cam (10) arranged on the cam axis (7) of the cylinders; an actuator system for said additional rocker arm (9), for each cylinder. In the actuator system of said additional rocker arm (9) there is a piston (15) hinged to an end of said rocker arm, said piston (15) being in its turn moved hydraulically or by a mechanical system comprising an additional arm (12) controlled by eccentric cams (13).

Abstract: An air intake device for an engine is provided that includes a throttle body (1), a throttle valve (5) that has a valve shaft (5a) rotatably supported on the throttle body (1), a throttle drum (8) connected to one end of the throttle valve (5), a throttle sensor (51) connected to the other end of the valve shaft (5a), a bypass (20) bypassing the throttle valve (5), and a bypass valve (25) that opens and closes the bypass (20), a bearing boss (3) supporting one end part, on the throttle drum (8) side, of the valve shaft (5a) being integrally and projecting provided on one side face of the throttle body (1), wherein the bypass (20) is formed so as to surround the bearing boss (3). This enables the air intake device for an engine to be made compact in spite of the bypass being present.

Abstract: A control method and a control system for deceleration of a vehicle including a continuous valve lift apparatus (CVVL) may include determining whether fuel cutting condition is satisfied, determining whether brake pedal input signal is detected and controlling deceleration according to brake pedal input signal by at least one of controlling throttle opening angle and controlling valve lift of the CVVL.

Abstract: A fuel delivery system for a combustion engine is provided. The fuel delivery system includes an exhaust treatment device, a fuel injection unit, a fuel supply, and a fuel pump. The fuel pump includes at least one inlet configured to receive fuel from the fuel supply. A first fixed-output pumping element is configured to generate a first fuel flow at a first pressure and a first flow rate. A second fixed-output pumping element is configured to generate a second fuel flow at a second pressure and a second flow rate. At least one of the second pressure and the second flow rate is different from the first pressure and the first flow rate. A first outlet is configured to direct the first fuel flow to the fuel injection unit. A second outlet is configured to direct the second fuel flow to the exhaust treatment device.

Abstract: In a method for pressure control in an injection system of an internal combustion engine, a pump efficiency dependent upon the type of pump is taken into account in the control of a high-pressure stored value. To this end, the pump efficiency may be determined based on a stored table or a proximity function.